The row toggle is off, strength 0, or the trigger word is missing from the prompt. Check the toggle and strength; add the trigger word; verify the LoRA family matches the checkpoint.

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Power Lora Loader (rgthree) node in ComfyUI

Power Lora Loader stacks any number of LoRAs in one node with per-row toggles and strengths, replacing chains of Load LoRA nodes; the rgthree pack also adds Fast Groups Bypasser, Context nodes and the Image Comparer.

Node pack: rgthree-comfy

Category: Popular custom node packs

What Power Lora Loader (rgthree) does

rgthree-comfy is a quality-of-life pack. Its best known node, Power Lora Loader, lets you add LoRA rows with a + button, each with an on/off switch, a model strength and (in advanced mode) a separate clip strength. Toggling a LoRA no longer means rewiring. The pack also brings Fast Groups Bypasser / Muter (switches for whole groups), Context and Context Switch (bundle model, clip, vae, conditioning and latents into one wire), Any Switch, Image Comparer (slider between two renders), Seed with history, and link-fixing and progress-bar features.

Power Lora Loader supports Flux and model-only LoRAs: leave clip connected for SD/SDXL, or connect only the model for model-only use. LoRA trigger words are shown in the row info when the file contains metadata.

Inputs

Name	Type	What it is
model	MODEL	From the checkpoint or UNet loader.
clip	CLIP	Optional; omit for model-only LoRAs.
lora rows	widget	Each row: enabled, file, strength (and strength_clip in advanced mode).

Outputs

Name	Type	What it is
MODEL	MODEL	Patched model.
CLIP	CLIP	Patched text encoder.

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How to use Power Lora Loader (rgthree)

Install rgthree-comfy from ComfyUI Manager and restart.
Add Power Lora Loader after Load Checkpoint; connect model and clip.
Press "+ Add Lora", choose a file, set strength 0.8.
Add more rows; toggle them on and off between renders to compare.
Connect MODEL and CLIP onward exactly as with Load LoRA.

Settings and tips

Right-click a row for "Show info" with trigger words and training metadata.
Fast Groups Bypasser lets you switch a hires-fix or detailer group on and off with one click.
Image Comparer with the before/after outputs is the fastest way to judge a LoRA.
Context nodes cut the wire clutter in large graphs.
Negative strengths work for removing a style a LoRA was trained on.

Troubleshooting Power Lora Loader (rgthree)

LoRA has no effect

Why it happens

The row toggle is off, strength 0, or the trigger word is missing from the prompt.

How to fix it

Check the toggle and strength; add the trigger word; verify the LoRA family matches the checkpoint.

Error about clip input with a Flux LoRA

Why it happens

Some Flux LoRAs have no text encoder weights and a few loaders warn when clip is connected.

How to fix it

Disconnect clip and use the node model-only, or ignore the warning (keys that do not exist are skipped).

Rows lost after loading a workflow

Why it happens

The workflow was saved with an older pack version or the LoRA files are missing on this machine.

How to fix it

Update rgthree-comfy; re-pick files that are missing (they show in red).

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Questions about Power Lora Loader (rgthree)

Is this different from LoRA Stack nodes in Efficiency Nodes?

Same idea; Power Lora Loader has a nicer per-row UI and metadata display, Efficiency's stacker plugs into its Efficient Loader.

Does it support LyCORIS/LoHa?

Yes, anything the core Load LoRA accepts.

Related nodes

Load LoRA

ComfyUI core

Load LoRA (LoraLoader) applies a LoRA file to the MODEL and CLIP with separate strengths, so a style, character or concept can be added to any checkpoint without merging.

Load Checkpoint

ComfyUI core

Load Checkpoint (CheckpointLoaderSimple) opens a .safetensors or .ckpt model file and hands out the three parts every workflow needs: the diffusion MODEL, the CLIP text encoder and the VAE.

Efficient Loader and KSampler (Efficient)

efficiency-nodes-comfyui

Efficient Loader combines checkpoint, VAE, LoRA stack, both prompts and the empty latent into one node, and KSampler (Efficient) adds live previews, a built-in VAE decode and XY Plot support for comparing settings.

ComfyUI Manager

ComfyUI-Manager

ComfyUI Manager is the extension that installs, updates and fixes custom node packs and models from inside the interface, resolves missing nodes in imported workflows and snapshots your setup.

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